I feel like she lived elsewhere because I vaguely remember someone saying something about her flying in. Also, she needed a hotel too for the wedding and couldn't get one. In the series finale both elder sets of parents are staying with Lois and Clark at the townhouse, so I assume they don't have homes in the area. On the other hand, during the wedding planning when she was all up in their kool-aid with Beverly the wedding planner, it seems like she must live in the area... Unless she just jammed out for a while in a hotel. She did divorce a doctor, so she's probably okay financially to do that. Lol